A 5p1L2 block showing repeated plate varieties

With this block we can postulate that the plate was made up in pair of rows and that some plate varieties come from the master dies. This pattern is found on other stamps of this series (the 10c Rivadavia Red and the 50c, for example).



The right side stamp in the first row has the same scratch...



.. as the right side stamp in the third row



The left side stamp in the second row is a common plate variety.